By Dhara Ranasinghe LONDON (Reuters) -World markets found steadier ground on Monday after being whipsawed by broadsides in the U.S.-China trade war, while gold hit new record highs in a sign that uncertainty remained high. While U.S. President Donald Trump had threatened 100% tariffs on China from November 1 and Beijing said it could take countermeasures, he sounded more conciliatory on Sunday, posting that the U.S. did not want to "hurt" China. European shares were broadly higher, while U.S. stock futu ...